15213408980831 has 2 divisors, whose sum is σ = 15213408980832. Its totient is φ = 15213408980830.

The previous prime is 15213408980743. The next prime is 15213408980849. The reversal of 15213408980831 is 13808980431251.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15213408980831 is a prime.

It is a super-3 number, since 3×15213408980831³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15213408980131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7606704490415 + 7606704490416.

It is an arithmetic number, because the mean of its divisors is an integer number (7606704490416).

Almost surely, 2^{15213408980831} is an apocalyptic number.

15213408980831 is a deficient number, since it is larger than the sum of its proper divisors (1).

15213408980831 is an equidigital number, since it uses as much as digits as its factorization.

15213408980831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1658880, while the sum is 53.

The spelling of 15213408980831 in words is "fifteen trillion, two hundred thirteen billion, four hundred eight million, nine hundred eighty thousand, eight hundred thirty-one".